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  • 1
    Electronic Resource
    Electronic Resource
    The Detection of Nuclear Materials Losses (1995)
    Oxford, UK : Blackwell Publishing Ltd
    Decision sciences 26 (1995), S. 0 
    Details
    ISSN: 1540-5915
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Notes: The identification and location of materials losses in nuclear facilities is an important issue. Many complexities arise in monitoring such losses. These complexities include the dependency among materials balance observations and the influence of errors (outliers) on parameter estimates of various monitoring methods. The proposed Joint Estimation procedure is superior to standard methods (control chart and CUSUM) and to methods that build in correlation (ARMA control chart, ARMA CUSUM, and the Generalized M procedure) in the detection of nuclear materials losses. The Joint Estimation procedure is robust to the influence of outliers, is flexible in accommodating a range of dependencies among observations, and provides information on the type of loss. Further, the procedure is reliable in that it yields a probability of false alarms and a probability of detecting losses closer to specifications.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1540-5915.1995.tb01429.x
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  • 2
    Electronic Resource
    Electronic Resource
    Two-Group Classification Using Neural Networks (1993)
    Oxford, UK : Blackwell Publishing Ltd
    Decision sciences 24 (1993), S. 0 
    Details
    ISSN: 1540-5915
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Notes: Artificial neural networks are new methods for classification. We investigate two important issues in building neural network models; network architecture and size of training samples. Experiments were designed and carried out on two-group classification problems to find answers to these model building questions. The first experiment deals with selection of architecture and sample size for different classification problems. Results show that choice of architecture and choice of sample size depend on the objective: to maximize the classification rate of training samples, or to maximize the generalizability of neural networks. The second experiment compares neural network models with classical models such as linear discriminant analysis and quadratic discriminant analysis, and nonparametric methods such as k-nearest-neighbor and linear programming. Results show that neural networks are comparable to, if not better than, these other methods in terms of classification rates in the training samples but not in the test samples.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1540-5915.1993.tb00491.x
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Effectiveness of Joint Estimation When the Outlier Is the Last Observation in an Autocorrelated Short Time Series (1999)
    Oxford, UK : Blackwell Publishing Ltd
    Decision sciences 30 (1999), S. 0 
    Details
    ISSN: 1540-5915
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Notes: The effectiveness of the joint estimation (JE) outlier detection method as a process control technique for short autocorrelated time series is investigated and compared with exponentially weighted moving average (EWMA). The research goal is to determine the effectiveness of the method for detecting out-of-control observations when they are the last observation in a short autocorrelated time series. This is an important problem because detecting an outlier in the period when it occurs, rather than several periods after it occurs, will preclude the production of more defective units. Two cases are investigated: short simulated time series when normality is assumed, and short real time series when the assumption is violated. The results show that JE is effective for short time series, particularly for autoregressive series when normality is violated. Joint estimation is also effective for moving average series under the normality assumption and less effective when the assumption is violated. In all cases, JE is found to be more effective than EWMA.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1540-5915.1999.tb00908.x
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  • 4
    Electronic Resource
    Electronic Resource
    A Cross-Validation Analysis of Neural Network Out-of-Sample Performance in Exchange Rate Forecasting (1999)
    Oxford, UK : Blackwell Publishing Ltd
    Decision sciences 30 (1999), S. 0 
    Details
    ISSN: 1540-5915
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Notes: Econometric methods used in foreign exchange rate forecasting have produced inferior out-of-sample results compared to a random walk model. Applications of neural networks have shown mixed findings. In this paper, we investigate the potentials of neural network models by employing two cross-validation schemes. The effects of different in-sample time periods and sample sizes are examined. Out-of-sample performance evaluated with four criteria across three forecasting horizons shows that neural networks are a more robust forecasting method than the random walk model. Moreover, neural network predictions are quite accurate even when the sample size is relatively small.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1540-5915.1999.tb01606.x
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Using Polynomial Smoothing and Data Bounding for the Detection of Adverse Process Changes in a Chemical Process (1994)
    s.l. : American Chemical Society
    Journal of chemical information and modeling 34 (1994), S. 881-889 
    Details
    ISSN: 1520-5142
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ci00020a023
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  • 6
    Electronic Resource
    Electronic Resource
    Monitoring the Quality of a Chemical Production Process Using the Joint Estimation Method (1995)
    s.l. : American Chemical Society
    Journal of chemical information and modeling 35 (1995), S. 53-58 
    Details
    ISSN: 1520-5142
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ci00023a008
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    Using polynomial smoothing and data bounding for the detection of nuclear material diversions and losses (1995)
    s.l. : American Chemical Society
    Journal of chemical information and modeling 35 (1995), S. 442-450 
    Details
    ISSN: 1520-5142
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ci00025a012
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    Paper (German National Licenses)
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  • 8
    Electronic Resource
    Electronic Resource
    Formation and performance of multi-partner joint ventures: a Sino-foreign illustration (1998)
    Bingley : Emerald
    International marketing review 15 (1998), S. 171-187 
    Details
    ISSN: 0265-1335
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Economics
    Notes: This study examines the factors influencing the number of partners forming an international joint venture (IJV) and the resultant outcome on performance. Various theoretical paradigms (such as strategic behavior, organizational learning, eclectic theory, socio-cultural distance, and role theory) are drawn upon from the literature to develop a set of testable hypotheses which may assist in understanding the factors influencing the number of partners forming an IJV. Size (overall equity investment), control, socio-cultural distance, industrial characteristics (technology and capital intensity) and location are used to differentiate the number of partners in an IJV. Additionally, an outcome orientation was taken to determine the impact of the number of partners on performance. Empirical findings, based upon Sino-foreign IJVs, indicate that the number of partners involved with the cooperative agreement were positively associated with the size of the IJV, and differed across control and location of the IJV. Further, performance tended to increase as more partners were included within the IJV.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1108/02651339810221025
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  • 9
    Electronic Resource
    Electronic Resource
    Conceptualizing the global marketplace: marketing strategy implications (1997)
    Bingley : Emerald
    Marketing intelligence & planning 15 (1997), S. 117-123 
    Details
    ISSN: 0263-4503
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Economics
    Notes: The debate over the standardization and/or localization of marketing strategy has proceeded without a sound theoretical underpinning. Attempts to generate such an underpinning through the development of a conceptualization of the globalization of world markets. Further, and more importantly, presents a three-step process to assist marketing managers in assessing the appropriateness of strategy implementation. Utilizes the electronics industry as an illustration of the appropriateness of the model. Provides a much-needed conceptualization of the globalization process and an enumeration of the necessary economic conditions for marketing strategy determination.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1108/02634509710165911
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    Paper (German National Licenses)
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  • 10
    Electronic Resource
    Electronic Resource
    The human factor in advanced manufacturing technology adoption: An empirical analysis (1998)
    Bingley : Emerald
    International journal of operations & production management 18 (1998), S. 87-106 
    Details
    ISSN: 0144-3577
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Economics
    Notes: Examines the success factors critical to the adoption and implementation of advanced manufacturing technology. Empirically tests the hypothesis that the management variables most associated with the human factor in automation projects alone can differentiate firms who are successful in adopting the technologies from those who are not so successful. Analyzes the differences between the two groups of firms across 27 management variables and six demographic variables.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1108/01443579810192925
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